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Hace 1 día · Spinks' undisputed status ended when he was stripped of the WBC title for pursuing a rematch against Muhammad Ali instead of a bout against mandatory challenger Ken Norton. WBA–WBC–IBF era (1983–2007) No. Name Date Defenses 1 Mike ... (def. Doug Jones) 12 May 1962 – 14 Feb 1963 1 Era ended when the WBC was inaugurated.
